General
Description
The AS9134A is a CMOS low dropout, low noise, low power consumption, low quiescent current positive linear regulator with wide input voltage range. The AS9134A can deliver a guaranteed 400mA load current with a low dropout voltage. Quiescent
current of only 2.0uA makes these devices ideal for powering the battery-powered, always-on systems that require very little idle-state power dissipation
to a longer service life.
The device is suitable for portable application such as cellular handsets or PDA. Besides, its current
limit protection and on-chip
thermal shutdown function provide protection against any combination of over-load or ambient temperature which could cause junction temperature exceeding maximum rating.
The AS9134A
includes a reference
bypass pin in order to reduce output noise and a logic control shut-down
input.
The space-saving SOT89-3L packages are attractive for hand-held applications. The device is specified over an ambient temperature range of -40˚C
to 125˚C.
Features
● Output Current Up to 400mA
● Wide Voltage VIN Range: 2.0V to 30V
● Very Low Quiescent Current at 2.0uA
● Low Dropout voltage of 150mV at 100mA/VIN=5V
● Output Voltage Accuracy at ±2.0%
● Support Fixed Output Voltage: 1.8V, 3.3V, 5V,9V, 12V.
● PSRR 70dB at 100Hz
● Needs Only 1.0uF Capacitor for Stability
● Current Limit Protection● Without EMI and Switch Noise
● Stable with Ceramic Capacitor or TantalumCapacitor
● RoHS and Green Compliant
● SOT89-3L Packages
● -40℃ to +125 ℃ Temperature Range
Applications
● Portable, Battery Powered Equipment
● Low Power Microcontrollers
● Laptop, Palmtops & PDAs
● Audio/Video Equipment
● Car Navigation Systems
● Industrial Control
● Weighting Scales
● Meters/Home Automation
